“Truly I say onto you, there are some of those who are standing here who shall not taste of death until they see the Kingdom of God and it has come with power”

This is enlightenment in a nut shell, because when you see the Kingdom of God before your physical death you are enlightened. When you see the Still, Aware, Light of God, which is the force that created the universe, you understand its Almighty power. And, that power is what rewarded you with the ultimate vision, which changes your life.

“Blessed are those who are pure in heart for they shall see God”

The heart signifies your internal nature, your motive, your mind, your life and to be pure is to be egoless. Not to hurt anyone by “thought, word or deed” and your earnestness and good intentions towards God shall be rewarded. You will see God and the Kingdom of Heaven, which again is Self-Realization (enlightenment).

“You are Gods” and “Behold the Kingdom of God is in your midst”

Your Soul is a small piece of God, and in order to see God you have to go within (meditate) to your source, and use that as your eyepiece, because nothing else will work. It is within You! But you'll have to search for it.

“The Kingdom of Heaven is within thee”